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Finding the Fourth Proportional to 222,201.88, 306,645.42 and 121,602.04

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Solution

The fourth proportional to 222,201.88, 306,645.42 and 121,602.04 is: 167,814.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,201.88 : 306,645.42 = 121,602.04 : x
  2. Step 2: Convert to fraction form
    222,201.88/306,645.42 = 121,602.04/x
  3. Step 3: Cross multiply
    222,201.88x = 306,645.42 × 121,602.04
  4. Step 4: Simplify right side
    222,201.88x = 37,288,708,628.66
  5. Step 5: Solve for x
    x = 37,288,708,628.66/222,201.88
  6. Step 6: Final answer
    x = 167,814.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.